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1)  reducing resistance and distracting method
减阻牵张
1.
Ultrastructural changes in periodontal tissues by used reducing resistance and distracting method on orthodontic tooth movement;
减阻牵张正畸牙移动过程中牙周组织超微结构变化的研究
2)  Stretch [英][stretʃ]  [美][strɛtʃ]
牵张
1.
Effect of Mechanical Stretch on Phosphorylation of Protein Kinase B and Secretion of Atrial Natriuretic Factor in Rat Ventricular Myocardium;
机械牵张对大鼠心室肌蛋白激酶B磷酸化及心钠素分泌的影响
2.
Changes of intracellular calcium of cultured myoblast induced by cyclic stretch;
周期性牵张面颌致成肌细胞内Ca~(2+)浓度变化的研究
3.
Effect of stretch-activated channels on ventricular dilation-induced c-fos expression in rats;
牵张激活通道对膨胀心室大鼠原癌基因c-fos表达的影响
3)  distraction [英][dɪ'strækʃn]  [美][dɪ'strækʃən]
牵张
1.
Expression of c-fos,OPG,OPGL in rabbit mandibular distraction osteogenesis zone;
兔下颌骨牵张成骨组织中c-fos和OPG及OPGL的表达
2.
Study on mandibular distraction osteogenesis by TiNi-SMA distractor;
应用内置钛镍记忆合金牵张器在下颌骨牵张成骨的初步研究
3.
The effectiveness of epiphyseal distraction was investigated in vivo and in vitro by forces applied to the distal femoral growth plates of New Zealand white immature rabbits.
本研究是对新西兰幼兔股骨远端骨骺进行体内和体外牵张实验。
4)  scar formation
减张
1.
Skin closure srips in preventing hypertrophic scar formation in facial incisions;
面部瘢痕整形手术后胶布减张治疗疗效观察
5)  distractor [英][dis'træktə]  [美][dɪ'stræktɚ]
牵张器
1.
Clinical research of minimally invasive percutaneous plate osteosynthesis technique treating unstable tibia fracture on basis of distractor assisted reposition;
牵张器辅助复位经皮钢板内固定治疗不稳定性胫骨骨折的临床研究
2.
Objective: To investigate the optimal time point to dismantle the distractor during mandibular distraction osteogenesis in goats.
目的:探讨下颌骨牵张成骨中牵张器的最佳拆除时机。
3.
To observe the repair of alveolar cleft (AC) bone defect under the application of distraction os-teogenesis(DO) using tooth - attached intraoral distractor ; to search a new approach for repair of alveolar cleft.
以牙骨复合体作为转运盘,牵张器通过牙带环固定,并安装上颌牙弓弓丝。
6)  stretch injury
牵张损伤
1.
Effect of CsA on CaN activity and APP expression of neurocytes after stretch injury;
神经细胞牵张损伤后CsA对CaN活性和APP表达的影响
补充资料:高分子减阻剂
高分子减阻剂
polymeric drag-reduction additives

   具有减小流体流动阻力作用的高分子。在流体输送过程中加入此类高分子,能减少转展阻力,降低能耗。水相输送减阻剂研究开发较早,已研究了大量的水溶性高分子减阻剂,使用量仅几个ppm就可降低50%以上的阻力,有时高达80%。高分子减阻剂的结构及性质是:高分子具有无支链结构,分子量高,溶解性好等。聚环氧乙烷、聚丙烯酰胺是良好的水相减阻剂。油相减阻剂具有重要的实际意义,原油多以管道输送。由于粘度大、摩擦力高,输送中消耗也高,已应用的油相减阻剂有聚异丁烯、氢化聚异戊二烯、无规聚丙烯、丁二烯及苯乙烯的嵌段共聚物、乙烯与乙烯基酯的共聚物聚丙烯酰胺、乙烯和丙烯的共聚物等。如氢化聚异戊二烯,一般用量2~20ppm,即可使流速增加,摩擦损耗降低27%到50%。高分子减阻剂已广泛用于灌溉、泄洪、消防、原油输送等方面。其缺点是价格贵、易降解等。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条